Sigma have had an 18-200mm DC lens in the lineup for years - the original was a tiny lens with a 62mm front end which offered amazing contrast and colour but suffered "Sigma disease" (Sample variated Decentering) worse than many so getting a good one could be difficult - what it had (when a good one was located) was better across the frame sharpness than any of the OS versions including the last 18-250 macro model , it also was a nice compact size. AF speed, CA and Vignetting were its bad ...View review in forums Leave a comment on this review
Sigma 18-200mm f/3.5-6.3 II DC OS HSM
Announced Oct 10, 2011 •
Lens | Canon EF-S, Nikon F (DX), Pentax KAF3, Sigma SA Bayonet, Sony/Minolta Alpha DT
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